Improved gluing and cementing machine



UNITED STATES PATENT OFFICE.

M. H. MERRIAM AND E. L. NORTON, OF CHARLESTOWN, MASSACHUSETTS.

lNlPROVED GLUING AND CEMENTING MACHINE.

Specification forming part of Letters Patent No. 55,335, dated June 5,1866.

To all whom it may concern:

Be it kllown that we, M. H. MERRIAM and E. L. NORTON, both ofCharlestown, ill the county of Middlesex and State of Massachusetts,have invented all Improved Machine for Cementing or Gluing Shoe-BindingStrips; and we do herebyleclare that the following', taken illcollnection with the drawings which accoln pany and form part lof thisspecification, is a description of ollr invention sufficient to enablethose skilled. in the art to practice it.

The invention relates to that one of the series of operations by whichwe convert skins of leather illto shoe-binding ribbon ill which thestrips of leather are cemented together, one to the end of another, toform the ribbon.

More particlllarly this invention relates to the preparation anddistribution of the cement ill such manner that it shall be exposed in acontilluolls and graduated fresh surface, to be applied by the operatorto the end of the strip by simply wiping sllch end over the surface,obtaining` just and only sufficient cement by the manipulation to causeproper adhesion of the united surfaces.

The invention consists ill combining a at for holding glue or othercelnellt with a cylinder rotating ill such vat (its lower surface beillg immersed ill the cement) and a scraper which removes the redundantcement froln the surface ofthe cylinder, leaving a tllill pellicle orsurface of cement upon the cylillder, a portion of which sufficient forunitin'g the strips may be removed by passing the end of the stripacross and ill contact with the rotatillg cylinder alld acolltilluously-fresh alld properlyprepared surface being always beforethe operator, ill consequence of the rotation of the roll in t'ne glueand the actioll of the scraper.`

The drawillgs represent a machine embodying the invention, Figure lshowing a plan, Fig. 2 a central vertical and longitudinal section, Fig.3 a central vertical and`cross section, alld Fig. et al1 end elevation,of the same.

a denotes a table or frame supporting a vat, b, the cement in which maybe heated by steam passing around the sides and bottom of the same, orby any other suitable means. Mounted in bearings on the frame a is ashaft, c, carrying a cylinder, d, the shaft with its cylinder beingrotated by any suitable power. The lower part ofl the cylinder extendsdown into the cenlellt contained in the vat. Upon one end of the vat isplaced a scraper, e, the inner edge of which is nearly in contact withthe surface of t-lle cylinder, and is moved up toward or away from suchsurface by an adjusting screw, j'.

The cement being brought by heat orother preparation to a suitableconsistency, 'rotation is given to the cylinder, the scraper beillgadjusted to remove the redundant cement raised upon the surface of thecylinder. This being accomplished, the operator takes a strip of leatherand wipes the end across the surface of coulent, obtaining upon it theproper qualitity of cement so disposed as to ilnpart the adhesivenessnecessary to ullite the strip to another, tlle rotation of the cylinderilnnlediatel y exposing a fresh surface of cclnent.

By this means it will be obvious that a perfectly uniform result may beattained ill llniting successive strips, there being always a freshsurface of cement so graduated in thickness as to obviate any liabiltyof obtaining a supertluity of cement upon the strip.

When the celnent is applied to the strip it is removed to a press,ullder which another strip is already laid, alld the cemented elld islaid upon the elld in the press, after which a platen is brought dowllupon them lo hold tllenl together until the cement is set, a series ofpresses being used so that the operation ot' cementing may be carried onwithout stopping for the setting of the cement upon each strip.

We claim- The combination of the cement-containingvat, the rotatingcelnent-cylimler, and the scraper, operating together in the manner andfor the purpose substantially as set forth.

In witness whereof we have hereunto set our hands this 24th day ofNovember, A. D. 1865.

M. H. MERRIAM. E. L. NORTON.

Witnesses J. B. CROSBY, F. GOULD.

